Parameters	Stations	I		II		III
Parameters	Months	EF	Igeo	EF	Igeo	EF	Igeo
Fe	April 2013	14.49	3.27	29.06	4.28	25.45	4.09
	July 2013	17.76	3.57	27.67	4.21	27.77	4.21
	October 2013	14.13	3.24	23.95	4.00	20.70	3.79
	January 2014	15.49	3.37	24.04	3.79	20.73	3.79
Cu	April 2013	0.16	−3.28	0.33	−2.21	0.36	−2.10
	July 2013	0.18	−3.08	0.26	−2.51	0.35	−2.10
	October 2013	0.15	−3.37	0.37	−2.03	0.29	−2.39
	January 2014	0.15	−3.31	0.37	−2.02	0.36	−2.08
Pb	April 2013	0.27	−2.46	0.38	−1.99	0.34	−2.16
	July 2013	0.39	−1.94	0.73	−1.05	0.84	−0.84
	October 2013	0.42	−1.82	0.60	−1.31	0.51	−1.56
	January 2014	0.32	−2.23	3.24	−1.11	0.70	−1.10
Zn	April 2013	0.07	−4.41	0.42	−1.83	0.84	−0.84
	July 2013	0.08	−4.31	0.31	−2.27	0.61	−1.31
	October 2013	0.08	−4.31	0.46	−1.70	0.42	−1.85
	January 2014	0.08	−4.18	0.45	−1.73	0.47	0.32
Mn	April 2013	0.042	−5.14	0.042	−5.15	0.47	−5.01
	July 2013	0.040	−5.22	0.041	−5.18	0.044	−5.10
	October 2013	0.031	−5.59	0.061	−4.62	0.044	−5.09
	January 2014	0.035	−5.43	0.060	−4.65	0.052	−4.86
Cr	April 2013	0.13	−3.59	0.18	−3.05	0.13	−3.56
	July 2013	0.16	−3.22	0.22	−2.79	0.39	−1.95
	October 2013	0.17	−3.16	0.17	−3.12	0.17	−3.14
	January 2014	0.22	−2.78	0.27	−2.47	0.23	−2.69